WO1998022955A1 - Cable isole auto-fusible - Google Patents

Cable isole auto-fusible Download PDF

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Publication number
WO1998022955A1
WO1998022955A1 PCT/JP1997/003865 JP9703865W WO9822955A1 WO 1998022955 A1 WO1998022955 A1 WO 1998022955A1 JP 9703865 W JP9703865 W JP 9703865W WO 9822955 A1 WO9822955 A1 WO 9822955A1
Authority
WO
WIPO (PCT)
Prior art keywords
self
resin
insulated wire
polyamide resin
melting point
Prior art date
Application number
PCT/JP1997/003865
Other languages
English (en)
Japanese (ja)
Inventor
Seiichi Nagamine
Shigeo Nishida
Takeshi Ukawa
Kazushige Tamura
Original Assignee
Kaneka Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP31196296A external-priority patent/JP3903504B2/ja
Priority claimed from JP32268896A external-priority patent/JPH10162653A/ja
Application filed by Kaneka Corporation filed Critical Kaneka Corporation
Priority to US09/101,773 priority Critical patent/US6231979B1/en
Priority to DE69734235T priority patent/DE69734235T2/de
Priority to EP97909622A priority patent/EP0881646B1/fr
Publication of WO1998022955A1 publication Critical patent/WO1998022955A1/fr

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/236—Manufacture of magnetic deflecting devices for cathode-ray tubes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
    • C08L77/06—Polyamides derived from polyamines and polycarboxylic acids
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D177/00—Coating compositions based on polyamides obtained by reactions forming a carboxylic amide link in the main chain; Coating compositions based on derivatives of such polymers
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D177/00—Coating compositions based on polyamides obtained by reactions forming a carboxylic amide link in the main chain; Coating compositions based on derivatives of such polymers
    • C09D177/06—Polyamides derived from polyamines and polycarboxylic acids
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
    • H01B3/303—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups H01B3/38 or H01B3/302
    • H01B3/305—Polyamides or polyesteramides
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/12—Insulating of windings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H01F5/06—Insulation of windings
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2933—Coated or with bond, impregnation or core
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2933—Coated or with bond, impregnation or core
    • Y10T428/294—Coated or with bond, impregnation or core including metal or compound thereof [excluding glass, ceramic and asbestos]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2933—Coated or with bond, impregnation or core
    • Y10T428/294—Coated or with bond, impregnation or core including metal or compound thereof [excluding glass, ceramic and asbestos]
    • Y10T428/2942—Plural coatings
    • Y10T428/2947—Synthetic resin or polymer in plural coatings, each of different type

Definitions

  • the present invention relates to an insulated wire used for manufacturing a coil such as a deflection yoke used for, for example, a television receiver or a computer display, and more particularly, to a self-fusing insulating material provided with a self-fusing layer as an outermost layer. It relates to electric wires.
  • a coil such as a deflection yoke used for, for example, a television receiver or a computer display
  • a self-fusing insulating material provided with a self-fusing layer as an outermost layer. It relates to electric wires.
  • the self-fusing insulated wire has a fusion layer provided on the conductor directly or on the outermost layer via an insulation layer. For this reason, the self-fusing insulated wire, after coil winding, melts or swells the outermost fusion layer by current heating fusion, hot air blowing heat fusion, solvent treatment, etc. Self-supporting coils can be easily made by fusing and solidifying. Therefore, the self-fusing insulated wire can omit the step of impregnating the insulating varnish and the like, thereby reducing the productivity and the manufacturing cost of the coil of the electric device, thereby reducing the magnet wire of the home electric device, the OA device, the electric component and the like. It has come to be widely used.
  • the structure of this self-fusing insulated wire consists of applying and baking the outermost layer of an insulated wire obtained by applying and baking insulating paint, such as polyurethane paint, polyesterimide paint, etc., on the conductor multiple times. Thus, a fused layer was formed.
  • insulating paint such as polyurethane paint, polyesterimide paint, etc.
  • the fusion coating an epoxy resin coating, a copolymerized polyamide resin coating, and the like have been used.
  • self-fusing insulated wires that use polyamide resin paint as the fusing paint are widely used because they exhibit good adhesive strength when used for coil winding, bonding, and pressure molding. ing.
  • the deflection yoke components for television receivers and computer displays are heat-resistant (higher than 105, but more than 12 are required in the future) for high definition and high frequency.
  • coils that do not change or that have a shape close to the dimensions of the wound mold with little dimensional change of the coil molded product.
  • self-fusing insulated wires that have excellent heat deformation resistance and adhesive strength even at high temperatures, and that have low coil deformation strain.
  • the pressure-molded coil has a disadvantage that the coil shape is deformed when the temperature is returned to room temperature, and the coil shape becomes larger than the dimensions of the winding mold, and the deformation causes coil twisting. If such a coil is used as a deflection yoke component incorporated in a high-definition display or the like, a phenomenon in which the coil is twisted during mounting may occur, which may cause color misregistration on the screen.
  • conventional self-fusing insulated wires made by coating and baking a polyamide resin paint on insulated wires tend to vary in characteristics depending on the baking conditions during coating and baking, especially when the baking temperature is higher than normal. There was a problem that it was necessary to control the baking operation quite severely because the fusion resin was easily decomposed.
  • a coil molded using a self-fusing insulated wire in which the fusion resin is partially decomposed in this way has a greater deformation immediately after coil molding due to springback than a normal product.
  • a deflection coil is incorporated into a television receiver, a computer display, or the like, workability is poor. Further, as described above, if the coil is deformed due to heat during use after being assembled, it also causes a color shift (misconvergence) on the screen.
  • an object of the present invention is to provide a coil formed by winding, bonding, and pressure molding that has a shape close to the dimensions of a winding die, and that the coil has excellent heat-resistant deformation at high temperatures.
  • An object of the present invention is to provide a self-fusing insulated wire which has a property and can obtain a coil having high adhesiveness. Further, the present invention prevents the decomposition of the polyamide resin when forming a fusion layer of the self-fusing insulated wire by applying and baking a paint containing a polyamide resin as a main component on the insulated wire, An object of the present invention is to prevent a coil using the self-fusing insulated wire from being thermally deformed when the coil is exposed to a high temperature. Disclosure of the invention
  • the self-fusing insulated wire of the present invention has a melting point of 200 to 150 parts by weight of a copolymerized polyamide resin alone or a mixture of two or more having a melting point of 105 to 150 ° C in the outermost layer.
  • This self-fusing insulated wire makes use of the excellent adhesive strength characteristics and high heat deformation temperature of the copolymerized polyamide resin that constitutes the fusion layer. Similar to the self-fusing insulated wire, the deformation of the coil formed under pressure is small, and the formed coil has a shape close to the dimensions of the winding die.
  • the melting points of the polyamide resin and the nylon resin were measured by the DSC method (differential scanning calorimetry).
  • the copolymerized polyamide resin is obtained by copolymerizing two or more types of homonylon raw materials.
  • the melting point of the copolymerized polyamide resin is 105 Use a temperature of ⁇ 150 ° C.
  • the reason for setting the lower limit of the melting point of the copolymerized polyamide resin to 105 ° C is that this type of self-fusing insulated wire still requires heat resistance of 105 or more.
  • the reason for setting the temperature to 150 ° C is that when heated at a high temperature exceeding 150 at the time of heat fusion, the self-fusing insulated wire is degraded by heat and the insulation properties deteriorate.
  • copolymerized polyamide resin examples include Daicel Huls X7079, T-170, T-250, T-350, T-430, T-450, T-470, T-550, Nippon Rilsan Co., Ltd. H-005, H-104, H-105, H-106, M-1186, M-1259, M-1422, M-1425, etc. These can be used alone or in appropriate combination.
  • the high melting point nylon resin has a melting point in the range of 200 to 30 Ot: and specific examples thereof include nylon 66 and nylon 46.
  • the high melting point nylon resin there is also nylon 6 other than these. In the case of nylon 6, there is a little difficulty in coil deformation distortion, and nylon 66 or nylon 46 is more preferable.
  • the melting point of the highly fused nylon resin is set to 200 to 300 ° C., and the amount added to 100 parts by weight of the copolymerized polyamide resin is limited to 2 parts by weight or more and less than 10 parts by weight.
  • the addition of the high melting point resin significantly impairs the adhesion of the copolymerized polyamide resin when the added amount is 10 parts by weight or more, and the added amount of the high melting point resin is more preferably within 5 parts by weight.
  • a resin which can cope with such an addition amount or less a resin having a melting point of 200 or more has a high effect.
  • a resin having a melting point of 300 or more has a drawback that the solubility in an organic solvent is poor and the workability of coating composition is poor.
  • a polyamide resin having a lower molar ratio of a terminal carboxyl group than a terminal amino group is used as a copolymerized polyamide resin of a polyamide resin paint for forming a fusion layer
  • decomposition of the polyamide resin when forming the fusion layer is performed.
  • the content molar ratio of the terminal carboxyl group to the terminal amino group of the copolymerized polyamide resin is It is preferable to set 20:80 to 0: 100.
  • polyamide resins used for molding materials have a structure in which the molar ratio of terminal carboxyl groups is higher than that of terminal amino groups due to low colorability and good workability during resin production. Had become.
  • a resin having a high terminal carboxyl group molar ratio is liable to be decomposed at a high temperature. Therefore, when the resin is used for a fusion layer of a self-fusing insulated wire, the fusion layer is formed. The resin is easily decomposed in the baking process.
  • the fusion layer in the self-fusing insulated wire unlike the molding material application, there is no problem regarding coloring of the resin due to the high content ratio of the terminal carboxyl group.
  • the resin is less likely to decompose.
  • the range of baking conditions when forming the fusion layer is widened, and workability and productivity are improved.
  • the coil formed using the self-fusing insulated wire has good thermal deformation characteristics when exposed to high temperatures. This effect is not obtained when the molar ratio of the terminal epoxy group of the polyamide resin is higher than that of the terminal amino group.
  • the content molar ratio of the terminal carboxyl group to the terminal amino group of the polyamide resin is more preferably 20% or less for the terminal carboxyl group. It is not clear why a polyamide resin having a terminal carboxyl group content molar ratio lower than that of a terminal amino group exhibits excellent heat resistance.However, since the terminal carboxyl group concentration of the polyamide resin is low, room temperature or high temperature It is considered that the decomposition of the polyamide resin by the acid component at that time becomes difficult to occur.
  • the polyamide resin is a product obtained by, for example, polymerization of lactam or polymerization of dibasic acid and diamine, and they can be used as a copolymer polyamide resin in combination of two or more kinds.
  • this type of polyamide resin include a homopolymer of an aliphatic polyamide or a copolymerized polyamide resin composed of an aliphatic polyamide monomer, and a copolymer composed of one unit of an aliphatic polyamide monomer and an alicyclic polyamide monomer.
  • the polyamide resin include a homopolymer of an aromatic polyamide or a copolymerized polyamide resin containing an aromatic polyamide monomer unit.
  • Examples of the aliphatic polyamide include Daicel Humids Co., Ltd. Nippon Rilsan's M-118, H-105, etc.
  • Examples of the polyamide resin copolymerized with the alicyclic polyamide monomer include H-104, M-142, and M-142 from Nippon Rilsan.
  • Examples of the copolymerized polyamide resin containing an aromatic polyamide monomer unit include Daicel Huls' T-300, T-500, and the like.
  • the types of these polyamide resins are not specified, but it is preferable to select and use them according to the intended use.
  • these polyamide resins preferably have a relative viscosity of a 0.5% meta-cresol solution in 25 of 1.4 to 2.0.
  • the polyamide resin having a relative viscosity of less than 1.4 has too small a molecular weight, and as a result, it is difficult to exert the effect of improving the deformation preventing property at room temperature and high temperature.
  • a polyamide resin having a relative viscosity of more than 2.0 is desirable for the effect of improving heat deformation resistance, but when the molecular weight becomes too large, the viscosity of the coating increases when the coating is applied, and the workability of application on a conductor is improved. There is a drawback that it deteriorates rapidly.
  • the coating for forming the fusion layer in the self-fusing insulated wire used in the present invention is obtained by dissolving the above polyamide resin in an organic solvent.
  • the organic solvent for dissolving the polyamide resin any solvent can be used as long as it is a good solvent for these polyamide resins.
  • organic solvent examples include solvents having a phenolic hydroxyl group, for example, phenol, o-cresol, m-cresol, p-cresol, 2,3-xynol, 2,4-xinol, 2,5-xylenol, 2 , 6-Xylenol, 3,4-Ixylenol, 3,5-Xylenol, o-n-Propylphenol, 2,4,6-Trimethylphenol, 2,3,5-Trimethylphenol, 2,4,5 It is preferable to use trimethylphenol, 4-ethyl-12-methylphenol, 5-ethyl-2-methylphenol, and crezolic acid which is a mixture thereof.
  • solvents having a phenolic hydroxyl group for example, phenol, o-cresol, m-cresol, p-cresol, 2,3-xynol, 2,4-xinol, 2,5-xylenol, 2 , 6-Xylenol, 3,4-Ixylen
  • an aliphatic hydrocarbon for example, an aliphatic hydrocarbon, an aromatic hydrocarbon, an ether, an acetal, a ketone, an ester and the like can be used.
  • the aliphatic hydrocarbon and the aromatic hydrocarbon include n-heptane, n-octane, cyclohexane, decalin, dipentene, binene, dodecane, tetradecane, benzene, toluene, xylene, ethylbenzene, diethylbenzene, and isopropyl.
  • Benzene, acylbenzene, p-cymene, tetra Phosphorus mixtures thereof, petroleum naphtha, coal tar naphtha, solvent naphtha and the like.
  • the concentration of the paint is not particularly limited as long as it can be applied onto the conductor. However, in order to prevent disconnection in the step of applying to the conductor, it is preferable that the paint concentration is lower as the conductor is thinner.
  • the coating material may be provided with lubricity on the surface of the electric wire by further adding an appropriate lubricant to the above-mentioned copolymerized polyamide resin and high-melting point nickel resin.
  • an appropriate lubricant in this case include low-density polyethylene, high-density polyethylene, medium-density polyethylene, polypropylene, polybutylene, polymethylpentene, polyolefins such as ethylene-propylene copolymer, polytetrafluoroethylene, tetrafluoroethylene.
  • fluorine resin such as polyvinylidene fluoride, solid paraffin, microcrystalline phosphorus wax, Alnabox, beeswax, montan wax And wax such as ozokerite, ceresin, wood wax, candelilla wax, shellac wax, whale wax, and enoline.
  • fluorine resin such as polyvinylidene fluoride, solid paraffin, microcrystalline phosphorus wax, Alnabox, beeswax, montan wax And wax such as ozokerite, ceresin, wood wax, candelilla wax, shella
  • the above coating material is applied to a conductor directly or via another insulating material and then baked to form a fusion layer as an outermost layer.
  • the coating and baking method is as follows: continuous coating is performed by a method such as die drawing, and baking is performed in a heating furnace having a furnace temperature of 250 to 500 ° C., so that the thickness of the fused layer is 0.000. A self-fusing insulated wire having a thickness of 5 to 0.015 mm is obtained.
  • Fig. 1 Simplified perspective view of a coil made by winding, fusing, and pressing a self-fusing insulated wire.
  • Fig. 2 Simplified front view showing a method of measuring the coil shape and neck diameter of a coil created by winding, fusing, and pressing a self-fusing insulated wire.
  • FIG. 3 Explanatory diagram showing a method for measuring the amount of twist of a coil created by winding, fusing, and pressing a self-fusing insulated wire.
  • 4 (a) and 4 (b) are explanatory views showing a method of measuring the adhesive force at the beginning of winding of a coil formed by winding, fusing, and pressing a self-fusing insulated wire.
  • copolymerized polyamide resin 100 parts of Daicel Huls X7079 with a melting point of 13 Ot: 100 parts, and as a high melting point resin, a unit nylon A-100 of 260 nylon with a melting point of 260 ° C was used. Then, these resin components were dissolved in a mixed solvent of cresol and xylene in a weight ratio of 70:30 to prepare a fusion coating having a resin content of 18%.
  • This fusion paint was applied and baked three times on a polyesterimide insulated wire with a conductor length of 0.250 mm and a finish outer diameter of 0.290 mm at a furnace length of 3 m, a furnace temperature of 300 ° C, and a linear velocity of 36 mZmin, and was repeatedly baked.
  • the self-fusing insulated wire of Example 1 having a thickness of 0.010 mm was obtained.
  • a self-fusing insulated wire of Example 2 was obtained in the same manner as in Example 1, except that the blending amount of nylon 66 was changed to 2 parts with respect to 100 parts of the copolymerized polyamide resin.
  • a self-fusing insulated wire of Example 3 was obtained in the same manner as in Example 1, except that the amount of nylon 66 was changed to 9 parts with respect to 100 parts of the copolymerized polyamide resin.
  • Example 4 As a high melting point nylon resin, 46 units nylon with melting point of 290 A self-fusing insulated wire of Example 4 was obtained in the same manner as in Example 1 except that F500 was used and 5 parts was blended with respect to 100 parts of the copolymerized polyamide resin.
  • a high-melting nylon resin was used except that 5 parts were blended with 100 parts of the copolymerized polyamide resin using A-130 JR from Unitika, which is 6 nylon with a melting point of 210 ° C.
  • A-130 JR from Unitika
  • Example 5 a self-fusing insulated wire of Example 5 was obtained.
  • the self-fusing insulated wire of Comparative Example 2 was prepared in the same manner as in Example 1 except that as a high melting point resin, 15 parts of A-100 from Unitika, which was nylon 66 having a melting point of 260 ° C., was blended. I got
  • Comparative Example 3 A self-fusing insulated wire of Comparative Example 3 was obtained in the same manner as in Comparative Example 1, except that PKHH manufactured by Union Carbide was used as an epoxy resin instead of the copolymerized polyamide resin. (Comparative Example 4)
  • a self-fusing insulated wire of Comparative Example 5 was obtained in the same manner as in Comparative Example 4, except that the blending amount of nylon 12 was changed to 20 parts with respect to 100 parts of the copolymerized polyamide resin.
  • the coil made using the insulated wire of Comparative Example 1 which did not contain the high-melting-point resin in the fusing paint, had a large wire adhesion and the amount of change due to thermal deformation.
  • the neck diameter after molding is larger than the mold size, and the amount of coil twist is large.
  • the deformation, torsion, and thermal deformation after molding were small and good. Poor adhesion of the wire caused the coil to stick.
  • the self-fusing insulated wires of Examples 1 to 5 of the present invention have no coiling due to adhesive defects when the deflecting coil is wound, fused, and pressed.
  • the size of the coil was close to the size of the winding mold even when it was left at room temperature, and exhibited excellent heat deformation resistance even at high temperatures (120 ° C).
  • the molar ratio of the terminal carboxyl group to the terminal amino group was 20:80, the relative viscosity of the 0.5% methcresol solution in 25 was 1.7, and the melting point by DSC method was 110.
  • Polyamide resin A (Daiamide 470-1 manufactured by Daicel Huels Co., Ltd.) was dissolved in a mixed solvent of cresol and xylene in a weight ratio of 70:30 to prepare a fusion coating having a resin content of 18%.
  • This fused coating is a polyester imide insulated wire with a furnace length of 3 m, a furnace temperature of 300 t :, a linear velocity of 36 mZmin, a conductor diameter of 0.250 mm, and a finish outer diameter of 0.290 mm.
  • Coating and baking were repeated three times to obtain a self-fusing insulated wire having a fusion layer thickness of 0.010 mm.
  • the content molar ratio of the terminal carboxyl group to the terminal amino group of the polyamide resin is It was calculated from the terminal amino group concentration and terminal lipoxyl group concentration measured as described below.
  • the terminal amino group concentration of the polyamide resin was measured by the following method. First, immerse sample 0.5 :! to 0.5 g in 50 ml of a mixed solvent of phenol Z methanol (10Z1 vol ratio) for 12 hours, and dissolve at room temperature by stirring for several hours. The NH 2 group concentration in this sample solution was titrated with a 0.01 N HC 1 Z methanol solution using an automatic titrator to obtain the terminal amino group concentration.
  • the terminal lipoxyl group concentration was also prepared in the same manner as above, and titrated with a 0.01N NOHZ solution in an automatic titrator to obtain the terminal carboxyl group concentration.
  • a self-fusing insulated wire was obtained in the same manner as in Example 6, except that the furnace temperature during application and baking of the fusing paint was set to 330 ° C.
  • a self-fusing insulated wire was obtained in the same manner as in Example 6, except that the furnace temperature at the time of applying and baking the fusion paint was 360 ° C.
  • Polyamide resin whose polyamide resin has a molar ratio of terminal epoxy group to terminal amino group of 20:80, a relative viscosity of 0.5% meta-cresol solution of 1.7 at 25, and a melting point of 125 by DSC method.
  • a self-fusing insulated wire was obtained in the same manner as in Example 6 except that (M-1422-1 manufactured by Nippon Rilsan Co., Ltd.) was used.
  • a self-fusing insulated wire was obtained in the same manner as in Example 7, except that the polyamide resin was changed to the polyamide resin B. (Example 11)
  • a self-fusing insulated wire was obtained in the same manner as in Example 8, except that the polyamide resin was changed to the polyamide resin B.
  • the polyamide resin has a terminal carboxyl group-terminal amino group content molar ratio of 80:20, a relative viscosity of 0.5% meta-cresol solution in 25 is 1.7, and a melting point by DSC method is 11 Ot: A self-fusing insulated wire was obtained in the same manner as in Example 6 except that the polyamide resin C (Diamid 470-2 manufactured by Daicel Huls) was used. (Comparative Example 7)
  • a self-fusing insulated wire was obtained in the same manner as in Example 7, except that the polyamide resin was changed to the polyamide resin C.
  • a self-fusing insulated wire was obtained in the same manner as in Example 8, except that the polyamide resin was changed to the polyamide resin C.
  • a self-fusing insulated wire was obtained in the same manner as in Example 10 except that the polyamide resin was changed to the polyamide resin D. (Comparative Example 11)
  • a self-fusing insulated wire was obtained in the same manner as in Example 11 except that the polyamide resin was changed to the polyamide resin D.
  • Self-fusing insulated wires were obtained in the same manner as in Example 6, except that Resin E (Daiamide 431 manufactured by Daicel Huls) was used. Self-fusing properties of obtained Examples 6 to 11 and Comparative Examples 6 to 12 were obtained.
  • three winding pobins are prepared and set on the winding machine.
  • Example 13 A method similar to that of Example 9 except that 100 parts of polyamide resin B was mixed with 5 parts of A-100 from Unitika, which is 66 nylon having a melting point of 260, as a high melting point resin. Thus, a self-fusing insulated wire was obtained. (Example 13)
  • a self-fusing insulated wire was obtained in the same manner as in Example 12 except that the furnace temperature during application and baking of the fusion paint was set to 330 ° C.
  • a self-fusing insulated wire was obtained in the same manner as in Example 12 except that the furnace temperature during application and baking of the fusion paint was set to 36 Ot.
  • a self-fusing insulated wire was obtained in the same manner as in Example 15, except that the furnace temperature at the time of applying and baking the fusion paint was set to 330 ° C.
  • a self-fusing insulated wire was obtained in the same manner as in Example 15 except that the furnace temperature at the time of applying and baking the fusion paint was set to 360.
  • the upper flange diameter is 51 mm
  • the lower flange diameter is 122 mm
  • the height is 70 mm
  • the neck diameter is 40.5 to 41.0 mm, as shown in FIGS.
  • Coil was created. That is, first, three winding bobbins are prepared and set on the winding machine.
  • a self-adhesive layer was formed using a coating material in which a high melting point nylon resin was added to a polyamide resin having a high terminal amino group molar ratio and a predetermined relative viscosity.
  • the change in the neck diameter of the manufactured coil after molding is further smaller than that in the case where the high-melting-point resin is not added, and the heat-resistant deformability is further improved.
  • the addition of a high-melting-point nylon resin further reduces the change in neck diameter of the manufactured coil after molding, and also reduces heat resistance. Deformability is also good. Industrial applicability
  • the self-fusing insulated wire according to the present invention in which a fusion layer made of a resin composition obtained by adding a high melting point nylon resin to a relatively low melting point copolymer polyamide resin is formed on the outermost layer.
  • the coil made in step 2 has no stagnation due to adhesion defects, and the size of the coil is close to the size of the winding mold even if it is left at room temperature after pressure molding, and the amount of twist is small. Has excellent heat deformation resistance.
  • the copolymerized polyamide resin for forming the fusion layer when a resin having a lower molar ratio of the terminal lipoxyl group than the terminal amino group is used as the copolymerized polyamide resin for forming the fusion layer, decomposition of the polyamide resin when forming the fusion layer is suppressed.
  • the range of baking conditions for the fusing paint is expanded, manufacturing process management is facilitated, and productivity is improved.
  • the coil manufactured using the self-fusing insulated wire has a stable shape and outer diameter, and can exhibit excellent heat deformation resistance even at high temperatures.
  • the self-fusing insulated wire of the present invention as described above is excellent in workability when incorporated into a television receiver or the like as a deflection yoke or the like, and has a color on a screen due to heat due to use after being incorporated. It is extremely useful for the production of coils, especially deflection yoke, without any deviation.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Power Engineering (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Insulating Materials (AREA)
  • Insulated Conductors (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Paints Or Removers (AREA)

Abstract

Cette invention concerne un câble isolé auto-fusible, lequel est obtenu en enduisant un câble isolé d'un revêtement se composant essentiellement d'une résine de polyamide. Le revêtement est ensuite cuit de manière à former une couche de fusion sur la couche située le plus à l'extérieur. Ce câble peut être enroulé en une bobine dont les dimensions sont proches de celles obtenues à partir de moules pour enroulements. La bobine ainsi obtenue possède une excellente résistance à la déformation thermique à de hautes températures, ainsi qu'une adhérence élevée entre les câbles. Le composant résine est préparé en ajoutant de 2 à moins de 10 parts en poids d'une résine de nylon ayant un point de fusion élevé allant de 200 à 300 °C, tel que du nylon 66 ou du nylon 46, à 100 parts en poids d'une résine de copolyamide ayant un point de fusion entre 105 et 150 °C. Ce composant résine est ensuite dissous dans un solvant organique de manière à préparer un enduit qui est appliqué directement sur un conducteur ou sur un autre isolant. On procède ensuite à la cuisson de l'enduit de manière à ce que la couche située le plus à l'extérieur consiste en une couche de fusion. Le revêtement formant la couche de fusion consiste en un revêtement à base de résine polyamide dont le contenu en moles de groupes d'extrémité carboxyle est inférieur au contenu en moles des groupes d'extrémité amino. Ce câble peut être utilisé dans la fabrication d'une bobine de déviation, ou analogue, que l'on monte dans un récepteur de télévision ou dans tout appareil similaire.
PCT/JP1997/003865 1996-11-22 1997-10-23 Cable isole auto-fusible WO1998022955A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US09/101,773 US6231979B1 (en) 1996-11-22 1997-10-23 Self-fusible insulated wire
DE69734235T DE69734235T2 (de) 1996-11-22 1997-10-23 Selbstsbindender isolierter draht
EP97909622A EP0881646B1 (fr) 1996-11-22 1997-10-23 Cable isole auto-fusible

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP31196296A JP3903504B2 (ja) 1996-11-22 1996-11-22 自己融着性絶縁電線
JP8/311962 1996-11-22
JP8/322688 1996-12-03
JP32268896A JPH10162653A (ja) 1996-12-03 1996-12-03 自己融着性絶縁電線

Publications (1)

Publication Number Publication Date
WO1998022955A1 true WO1998022955A1 (fr) 1998-05-28

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PCT/JP1997/003865 WO1998022955A1 (fr) 1996-11-22 1997-10-23 Cable isole auto-fusible

Country Status (7)

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US (1) US6231979B1 (fr)
EP (1) EP0881646B1 (fr)
KR (1) KR19990077131A (fr)
DE (1) DE69734235T2 (fr)
MY (1) MY124125A (fr)
TW (1) TW355794B (fr)
WO (1) WO1998022955A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6444916B2 (en) * 2000-03-31 2002-09-03 Kaneka Corporation Self-bonding insulated wire and self-bonding litz wire comprising the same

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3580725B2 (ja) * 1999-04-30 2004-10-27 Ｙｋｋ株式会社 防水性を有するスライドファスナーの製造方法
US8193896B2 (en) * 2008-08-15 2012-06-05 Martin Weinberg Polyamide electrical insulation for use in liquid filled transformers
CN101998785A (zh) * 2009-08-26 2011-03-30 深圳富泰宏精密工业有限公司 电子装置外壳及其制造方法
JP5454297B2 (ja) * 2010-03-30 2014-03-26 日立金属株式会社 絶縁電線
EP2606498B1 (fr) 2010-08-19 2020-04-15 Martin Weinberg Isolant électrique amélioré à base de polyamide destiné à être utilisé dans des transformateurs à isolant liquide
CN107148451B (zh) * 2014-10-27 2021-03-30 宇部兴产株式会社 聚酰胺组合物和由其形成的成形品

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JPS50158886A (fr) * 1974-06-14 1975-12-23
JPH0632877A (ja) * 1991-08-09 1994-02-08 Union Camp Corp 硬化しうる樹脂組成物及びその製造方法
JPH08249936A (ja) * 1995-03-10 1996-09-27 Totoku Electric Co Ltd アルコール巻線又は熱風巻線が可能な自己融着性マグネットワイヤ

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JPS5136869B2 (fr) * 1974-10-25 1976-10-12
JPS53106486A (en) * 1977-02-28 1978-09-16 Sumitomo Electric Ind Ltd Self-fused insulating wire and coil obtained from it
US4420536A (en) * 1981-11-23 1983-12-13 Essex Group, Inc. Self-bonding magnet wire
US5202187A (en) * 1990-04-12 1993-04-13 E. I. Du Pont De Nemours And Company Coated wire

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Publication number Priority date Publication date Assignee Title
JPS50158886A (fr) * 1974-06-14 1975-12-23
JPH0632877A (ja) * 1991-08-09 1994-02-08 Union Camp Corp 硬化しうる樹脂組成物及びその製造方法
JPH08249936A (ja) * 1995-03-10 1996-09-27 Totoku Electric Co Ltd アルコール巻線又は熱風巻線が可能な自己融着性マグネットワイヤ

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6444916B2 (en) * 2000-03-31 2002-09-03 Kaneka Corporation Self-bonding insulated wire and self-bonding litz wire comprising the same

Also Published As

Publication number Publication date
EP0881646A1 (fr) 1998-12-02
TW355794B (en) 1999-04-11
DE69734235T2 (de) 2006-07-06
EP0881646A4 (fr) 2002-06-12
US6231979B1 (en) 2001-05-15
KR19990077131A (ko) 1999-10-25
EP0881646B1 (fr) 2005-09-21
DE69734235D1 (de) 2005-10-27
MY124125A (en) 2006-06-30

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